The breed of dog you choose is very important, with different types suiting people with different lifestyles.
Some breeds are likely to hate being left alone for long – potentially suffering separation anxiety.
Symptoms of the condition includue destructive behaviour, signs of stress, persistant howling or whining, and even stomach complaints.
Here are 10 of the breeds that are most susceptible to suffering from separation anxiety, according to the American Kennel Club - pups you should avoid if you intend to leave them for more than a couple of hours a day.
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Three crocodiles saved a dog seeking refuge in a river - in a possible display of "emotional empathy". A report published in the Journal of Threatened Taxa outlines how a young dog was observed being chased by a pack of feral dogs and entered the shallow waters of the Savitri River, in India's Maharashtra. The dog had not spotted the three mugger crocodiles floating nearby, which began edging closer to what appeared to be certain prey.
A missing two-year-old girl who got lost in the woods near her home was found asleep on one of her two family dogs like a furry pillow - while the other "kept her safe". "She laid down and used one of the dogs as a pillow, and the other dog laid right next to her and kept her safe," lieutenant Mark Giannunzio said.